<!DOCTYPE html>
<html>
	<head>
		<title>x-return-top demo</title>
		<meta charset="UTF-8" />
		<meta name="viewport" content="width=device-width, initial-scale=1.0" />

    </head>
	<body>
        <div style="height:2000px;background:grey;">
        <!-- your code -->
        </div>

        <script type="text/javascript" left="80%" bottom="20%" text="返回顶部" src="xreturntop/x-return-top.min.js"></script>
	</body>
</html>
